676415 has 4 divisors (see below), whose sum is σ = 811704. Its totient is φ = 541128.

The previous prime is 676411. The next prime is 676421. The reversal of 676415 is 514676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 676415 - 2² = 676411 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67637 + ... + 67646.

It is an arithmetic number, because the mean of its divisors is an integer number (202926).

2⁶⁷⁶⁴¹⁵ is an apocalyptic number.

676415 is a deficient number, since it is larger than the sum of its proper divisors (135289).

676415 is a wasteful number, since it uses less digits than its factorization.

676415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135288.

The product of its digits is 5040, while the sum is 29.

The square root of 676415 is about 822.4445270047. Note that the first 3 decimals coincide. The cubic root of 676415 is about 87.7817854402.

The spelling of 676415 in words is "six hundred seventy-six thousand, four hundred fifteen".